Re: Initial impressions of DFly

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On Thursday 01 July 2004 04:23, you wrote:
>
> Try comparing the performance of tarring and untarring very large files
> on your hd. What is your subjective impression of DF performance on this
> test vs FreeBSD 5.x and 4.x?
- From 5-CURRENT updated a couple of weeks ago, extracting www.firefox:
make extract 68.98s user 21.59s system 55% cpu 2:43.39 total
And from DFly 1.0RC1:
make extract 67.03s user 21.26s system 61% cpu 2:23.36 total
Now this was done on an otherwise quiet system. On DFly, running KDE with
konqueror, kontact, and several other apps open and while listening to music
I received these numbers:
make extract 67.75s user 24.19s system 42% cpu 3:33.93 total. It was almost
unnoticeable, save for a couple of skips in my music. Under 5-CURRENT this
extract is somewhat noticeable, though for both OSes it is much more
noticeable on builds, though DFly performs better, subjectively, versus
- -CURRENT (with ULE). Even SCHED_BSD felt a little slower, however.
There are a few new features in -CURRENT that I miss but I can live without
(since I don't have them in -STABLE at home). Those are devfs and background
fsck. I'll probably notice a few others. There is one area where I note
- -CURRENT working better than DFly, sound. From /dev/sndstat I have:
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <CS461x PCM Audio> at irq 9 (1p/1r/0v channels duplex)
At least in the last few months, I receive many fewer skips on -CURRENT. DFly
is skipping a lot for me with anything IO intense going on, such as a build.
Skipping is decidedly worse using artsd; right now I am listening using
amaroK going through gstreamer to the OSS output and it works considerably
better. I will note that my -STABLE at home has lately been horrid with
sound, especially using artsd, but I haven't been able to spend much time on
that computer lately to take a good look at it. I haven't yet tried video
playback on DFly. On -CURRENT that gave me fairly mixed results.
- --
Jonathan Fosburgh
AIX and Storage Administrator
UT MD Anderson Cancer Center
Houston, TX
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